Exploding Torqueflites

mda440 said

Great info guys, I am staring to rebuild a 73 727 and am wondering if all stock valve bodies had l/r apply. If not is there any way to tell with the trans out? Also if it does have l/r apply, will installing a shift kit affect it? Thanks for any help...

Click to expand...

Sorry for the delayed response, I just noticed these newer posts.

Your stock valve body applies the L/R band in Manual Low. It does not apply the low/reverse band in Drive Low. Meaning, if you're in Drive, and the transmission is shifting by itself, when you accelerate from a standing stop with the shifter in the D posistion, the L/R is not applied allowing the possibilty of a sprag failure. When you are in manual low, with the shifter in the 1 posistion, the L/R band IS applied.

Installing a shift kit will not affect this...

HTH's....